Patent US3194035A successfully refreshed from Google Patents.
US3194035A
Expired / Lapsed
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System for eliminating cyclic variations in rolling mill gauge errors
Assignee: Davy and United Instruments Ltd
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Filing: 1962-05-04
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Granted: 1965-07-13
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Expires: 1982-05-04
Abstract
No abstract record available.
Inventors
- 👤 Smith Joseph Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:28
CPC Classifications
B; B21; B21B; B21B37/00; B21B37/58; B21B37/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A SYSTEM FOR PRODUCING AN IMPROVED INDICATION OF THE DISCREPANCY BETWEEN THE MEAN THICKNESS OF STRIP LEAVING A ROLLING MILL AND A PREDETERMINED THICKNESS, SAID SYSTEM COMPRISING MEANS FOR GENERATING AN ELECTRIC SIGNAL IN ACCORDANCE WITH THE INSTANTANEOUS DISCREPANCY, SAID SIGNAL INCLUDING COMPONENTS WHICH CYCLICALLY VARY WITH THE ROTATION OF THE ROLLS OF THE MILL, TWO ELECTRICALLY CONDUCTIVE PATHS ALONG WHICH SAID SIGNAL IS TRANSMITTED, A DELAY CIRCUIT IN ONE OF SAID PATHS CONTROLLED BY THE MILL ROLLS FOR RELAYING THE SIGNAL TRANSMITTED ALONG THAT PATH BY AN ODD NUMBER OF HALF-PERIODS OF ROTATION OF THE ROLLS, AND MEANS FOR ADDING TOGETHER THE SIGNALS TRANSMITTED BY THE TWO PATHS.
Claim 2
Independent Claim
109 words
A SYSTEM FOR PRODUCING AN IMPROVED INDICATION OF THE DISCREPANCY BETWEEN THE MEAN THICKNESS OF STRIP LEAVING A ROLLING MILL AND A PREDETERMINED THICKNESS, SAID SYSTEM COMPRISING MEANS FOR GENERATING AN ELECTRIC SIGNAL IN ACCORDANCE WITH THE INSTANTANEOUS DISCREPANCY, SAID SIGNAL INCLUDING COMPONENTS WHICH CYCLICALLY VARY WITH THE ROTATION OF THE ROLLS OF THE MILL, TWO ELECTRICALLY CONDUCTIVE PATHS ALONG WHICH SAID SIGNAL IS TRANSMITTED, A DELAY CIRCUIT IN ONE OF SAID PATHS CONTROLLED BY THE MILL ROLLS FOR RELAYING THE SIGNAL TRANSMITTED ALONG THAT PATH BY AN ODD NUMBER OF HALF-PERIODS OF ROTATION OF THE ROLLS, AND MEANS FOR ADDING TOGETHER THE SIGNALS TRANSMITTED BY THE TWO PATHS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |